@article {Liu_Huang_Guo_2017,
	title = {Pollution Characteristics and Sources of Ambient Volatile Organic Compounds (VOCs) in Beijing},
	journal = {Asian Journal of Ecotoxicology},
	volume = {12},
	number = {3},
	year = {2017},
	pages = {49-61},
	author = {Qichen, Liu and Jing, Huang and Xinbiao, Guo}
}
